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Finding the Fourth Proportional to 243,632.28, 336,215.04 and 136,208.28

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Solution

The fourth proportional to 243,632.28, 336,215.04 and 136,208.28 is: 187,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,632.28 : 336,215.04 = 136,208.28 : x
  2. Step 2: Convert to fraction form
    243,632.28/336,215.04 = 136,208.28/x
  3. Step 3: Cross multiply
    243,632.28x = 336,215.04 × 136,208.28
  4. Step 4: Simplify right side
    243,632.28x = 45,795,272,308.53
  5. Step 5: Solve for x
    x = 45,795,272,308.53/243,632.28
  6. Step 6: Final answer
    x = 187,968.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.